Ort used to be a Dunkin Donuts guy, until a trip to Israel introduced him to the world of strong coffee (sounds like we stayed in the same Bedouin tent). America may run on Dunkin, but Israel evidently does not. Soon addicted to the Seattle-based coffee overlord’s offerings, Ort started the site in 2007 with his brother to keep track of what kosher-keeping Jews could and could not imbibe.

Coffee beans and hot water are kosher: they do not run afoul of the biblical prohibitions against foods like pork and shellfish. But Starbucks does offer such items, for instance, breakfast sandwiches with ham. And the carafes, knives and other implements can commingle in Starbucks sinks and washing machines, which means particles from, say, a nonkosher smoothie mix can contaminate a spoon used to skim the foam off a latte.

The site uses the basic, if not very Jewish, green and red color-coded system as a guideline for consumers. Sadly, every single Frappucino is marked red (If only this was around in time to save Zoolander’s male models). The surprise kosher item on the Starbucks menu? The festive Eggnog Latte (though Ort recommends you check the eggnog certification). Here’s a sampling of Ort’s findings: